The sample variance s² is an unbiased estimator of the population variance σ² when the denominator of s² is A)n + 1 B)n C)n − 1

Question

Quizplus · Accepted Answer

The sample variance s² is calculated as the sum of squared deviations of each data point from the sample mean, divided by the degrees of freedom (n-1). Therefore, the denominator of s² should be (n-1) to ensure an unbiased estimator of σ².

The Sample Variance S2 Is an Unbiased Estimator of the Population

The Sample Variance S² Is an Unbiased Estimator of the Population